//! Linux-specific window management
#![allow(dead_code)]

use super::PlatformWindowManager;
use crate::webview::lifecycle::LifecycleManager;
use parking_lot::Mutex;
use scopeguard::defer;
use std::sync::Arc;
use tracing::{info, trace, warn};

/// Linux-specific window manager
pub struct LinuxWindowManager {
    x11_window: u64,
    lifecycle: Arc<Mutex<Option<Arc<LifecycleManager>>>>,
}

impl LinuxWindowManager {
    /// Create a new Linux window manager
    pub fn new(x11_window: u64) -> Self {
        info!(
            "[LinuxWindowManager] Created for X11 Window: 0x{:X}",
            x11_window
        );

        Self {
            x11_window,
            lifecycle: Arc::new(Mutex::new(None)),
        }
    }

    /// Process X11 events
    fn process_x11_events(&self) -> bool {
        defer! {
            trace!("[LinuxWindowManager] Event processing completed");
        }

        // Check lifecycle state
        if let Some(lifecycle) = self.lifecycle.lock().as_ref() {
            if let Some(reason) = lifecycle.check_close_requested() {
                info!("[LinuxWindowManager] Close already requested: {:?}", reason);
                return true;
            }
        }

        // TODO: Implement X11-specific event processing
        // This would involve:
        // 1. Connecting to X11 display
        // 2. Checking for ClientMessage events (WM_DELETE_WINDOW)
        // 3. Processing DestroyNotify events
        // 4. Handling ConfigureNotify for window state changes

        false
    }
}

impl PlatformWindowManager for LinuxWindowManager {
    fn process_events(&self) -> bool {
        self.process_x11_events()
    }

    fn setup_close_handlers(&self, lifecycle: Arc<LifecycleManager>) {
        *self.lifecycle.lock() = Some(lifecycle.clone());

        info!("[LinuxWindowManager] Close handlers configured");

        // TODO: Setup X11 event handlers
        // This would involve:
        // 1. Setting WM_DELETE_WINDOW protocol
        // 2. Registering event handlers for window close
        // 3. Setting up XSelectInput for relevant events
    }

    fn cleanup(&self) {
        defer! {
            info!("[LinuxWindowManager] Cleanup completed");
        }

        info!(
            "[LinuxWindowManager] Starting cleanup for X11 Window: 0x{:X}",
            self.x11_window
        );

        // Clear lifecycle reference
        *self.lifecycle.lock() = None;

        // TODO: Implement X11-specific cleanup
        // This would involve:
        // 1. Removing event handlers
        // 2. Destroying X11 window if needed
        // 3. Closing X11 display connection
    }

    fn is_window_valid(&self) -> bool {
        // TODO: Implement X11 window validity check
        // This would involve:
        // 1. Connecting to X11 display
        // 2. Checking if window ID is still valid
        // 3. Querying window attributes

        // For now, assume valid if window ID is not 0
        let is_valid = self.x11_window != 0;

        if !is_valid {
            warn!(
                "[LinuxWindowManager] Window is no longer valid: 0x{:X}",
                self.x11_window
            );
        }

        is_valid
    }
}

// Safety: X11 window IDs can be safely sent between threads
// as long as we synchronize access to the X11 display
unsafe impl Send for LinuxWindowManager {}
unsafe impl Sync for LinuxWindowManager {}
